McQuay MDS Multi System
McQuay MDS Multi System
McQuay MDS Multi System
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LDesign & installation Guide For <strong>McQuay</strong> <strong>MDS</strong> <strong>Multi</strong> <strong>System</strong>Model <strong>MDS</strong>200/220/240B380V/3N~/50HzR S TNFU LT 71S 81R NDB3AAir suction temperature sensor TH12Over cooling circuit outlet temperature sensorTH11After over cooling circuit temperature sensor TH10Before over cooling circuit temperature sensor TH9Ambient temperature sensor TH8Air discharge temperaturesensor of the digital compressor TH1LPT123HPT12REDWHITEBLACKREDWHITEBLACK3REDYELLOWBLUEKM1OL1REDYELLOWBLUEKM2OL2REDYELLOWBLUEKM3OL3REDYELLOWBLUEKM4OL4REDYELLOWBLUEKM5 KM6 KM7 KM8OL5 OL6 OL7 OL832 33 34 35 36 37 38 39 40 41 42 43REDBLUEYELLOWBROWNWHITEBLACKREDBLUEYELLOWBROWNWHITEBLACKL1TRBLACKWHITEOL3 11OL2 12OL1 13OL4 14HP 15 OL5 16 OL6 17OL7 18 OL8 19V1+V1-V2+V2-FIX3-OLFIX2-OLFIX1-OLDIG-OLLPHPNLJ1FANH1EXV3 EXV2FANL1LOW-IHI-1 TH6 TH3 TH11 TH9 TH4 TH1TH7 TH5 TH12 TH10 TH8 TH2<strong>MDS</strong>-EFANH2FANL2FANH3FANL3SV1SV2LPMW4WV2<strong>MDS</strong>-MS1S24WV1FIX3Bpc BinApc AinFIX2LOW-US3FIX1HI-U45464748DIGConnecting the indoor unitConnecting central control system<strong>MDS</strong>-PEXV1 EXV4T1T2M ~T3T1 T2M~T3T2T1M ~T3T2 T1 T3M~M~M~20 21 22 23KM6 KM5 KM8 KM7124571024 25 26 27Constant-speed Constant-speed Constant-speed Digital compressor Fan motor 1 Fan motor 2compressor 1 compressor 2 compressor 3KM5 KM6 KM7 KM8PMW4WVKM3 KM2 KM1 KM4EXV4Description of components and parts :Symbol Description Symbol DescriptionDB3A Phase-loss/reverse protector FU Fuse4WV Four-way valveEXV4 Over cooling electronic expansion valve 4KM ContactorPMW Solenoid valveHP High-pressure switchOL Overload protectorLPT Low -pressure sensorHPT High-pressure sensorTR TransformerOverload protection settings :Model OL1 OL2 OL3 OL4 OL5<strong>MDS</strong>200B 14.0A 14.0A 14.0A 14.0A 1.9A<strong>MDS</strong>220B 14.0A 14.0A 14.0A 14.0A 1.9A<strong>MDS</strong>240B 14.0A 14.0A 14.0A 14.0A 3.3ADIP switch settings :Model S1.1<strong>MDS</strong>200B OFF<strong>MDS</strong>220B OFF<strong>MDS</strong>240B OFFS1.2ONONONS2.2OFFOFFOFFS2.3 S3.1ON OFFON OFFON OFFOL6 OL7 OL80.67A 1.9A 0.67A0.67A 1.9A 0.67A1.8A 3.3A 1.8AS3.2ONONONS3.3OFFONONS3.4ONOFFONNotes:1: -----------Field wiring2: --------------Factory wiring3: S1.3~S1.8 set the number of indoor units. S2.1 sets theunit as a master/slave. For details of S2.4~S2.8.Model <strong>MDS</strong>200/220/240BR380V/3N~/50HzRSTNFUTEXV2LPT71HPTS 81123 1 2 3R NDB3ATRLOW-I HI-1 TH6 TH3 TH11 TH9 TH4 TH1 LOW-U HI-UV1+TH7 TH5 TH12 TH10 TH8 TH2BLACKV1-WHITEV2+V2-<strong>MDS</strong>-E<strong>MDS</strong>-MKM1KM2KM3KM4KM5KM6 KM7 KM8OL3 11FIX3-OL45OL2 12OL5OL746OL1OL2OL3OL4OL6OL8FIX2-OLConnecting the indoor unitOL1 134728293031FIX1-OL1448 Connecting central control systemOL4DIG-OLLP32 33 34 35 36 37 38 39 40 41 42 43L1 HP 15 OL5 16 OL6 17S1 S2 S3OL7 18 OL8 19<strong>MDS</strong>-PHPNEXV1 EXV4LJ1T2T2T2 20 21 22 2312 3 4 5 7 10T1 T3T1 T2 T3T1 T3T1 T3MMM MM M~~~ ~~~KM6 KM5 KM8 KM7ShaftShaftShaftShaftheaterheaterheaterheater24 25 26 27REDYELLOWBLUEREDYELLOWBLUEREDYELLOWBLUEREDYELLOWBLUEREDYELLOWBLUEREDBLUEYELLOWBROWNWHITEBLACKREDBLUEYELLOWBROWNWHITEBLACKLFANH1EXV3 EXV2FANL1FANH2FANL2FANH3FANL3SV1SV2PMWAir suction temperature sensor TH12Over cooling circuit outlet temperature sensorTH11After over cooling circuit temperature sensor TH10Before over cooling circuit temperature sensor TH9Ambient temperature sensor TH8Coil inlet temperature sensor TH2Coil inlet temperature sensor TH1Air discharge temperature sensor of the digital compressor TH1REDWHITEBLACKREDWHITEBLACK4WV24WV1FIX3AinBinApcBpcFIX2FIX1DIGKM5 KM6 KM7 KM8PMW4WV2 4WV1 KM3 KM2 KM1 KM4 EXV1 EXV4Constant-speedcompressor 1Constant-speed Constant-speed Digital compressor Fan motor 1 Fan motor 2compressor 2 compressor 3Description of components and parts :Symbol Description Symbol DescriptionDB3A Phase-loss/reverse protector FU Fuse4WV Four-way valveEXV1 <strong>System</strong> electronic expansion valve 1KM ContactorEXV2 <strong>System</strong> electronic expansion valve 2HP High-pressure switch EXV4 Over cooling electronic expansion valve 4LPT Low -pressure sensor PMW Solenoid valveHPT High-pressure sensorOL Overload protectorTR TransformerOverload protection settings :Model OL1 OL2 OL3 OL4 OL5 OL6 OL7 OL8<strong>MDS</strong>200BR 14.0A 14.0A 14.0A 14.0A 1.9A 0.67A 1.9A 0.67A<strong>MDS</strong>220BR 14.0A 14.0A 14.0A 14.0A 1.9A 0.67A 1.9A 0.67A<strong>MDS</strong>240BR 14.0A 14.0A 14.0A 14.0A 3.3A 1.8A 3.3A 1.8ADIP switch settings :Model S1.1<strong>MDS</strong>200BR OFF<strong>MDS</strong>220BR OFF<strong>MDS</strong>240BR OFFS1.2OFFOFFOFFS2.2 S2.3 S3.1 S3.2 S3.3 S3.4OFF ON OFF ON OFF ONOFF ON OFF ON ON OFFOFF ON OFF ON ON ONNotes:1: -----------Field wiring2: --------------Factory wiring3: S1.3~S1.8 set the number of indoor units. S2.1 sets theunit as a master/slave. For details of S2.4~S2.8.-46-
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